* {
    box-sizing: border-box;
    font-weight: 300;
}

body {
    margin: 0 auto;
    text-align: center;
    font-family: 'Source Sans Pro', sans-serif;
    font-weight: 300;
    color: white;
    background-color: #53e3a6;

}

.h_title {
    font-size: 50px;
}

.field {
    -webkit-appearance: none;
    -moz-appearance: none;
    appearance: none;
    outline: 0;
    border: 1px solid rgba(255, 255, 255, 0.4);
    background-color: rgba(255, 255, 255, 0.2);
    width: 250px;
    border-radius: 3px;
    padding: 10px 15px;
    margin: 0 auto 10px auto;
    display: block;
    text-align: center;
    font-size: 18px;
    color: white;
    -webkit-transition-duration: 0.25s;
    transition-duration: 0.25s;
    font-weight: 300;
}

.field:hover {
    background-color: rgba(255, 255, 255, 0.4);
}

.field:focus {
    background-color: white;
    width: 300px;
    color: #424f71;
}

